55. id probuably not drink from the pond but use it for washing etc, its only 500 gallons or so

but the spring seeps id drink from no problem, though we do have the well and generator, my nex projest is to fit the well with a manual handle pump system just in case. there is also rain that i would collect so we should never be without water. food wise we grow catch and can and freeze and dehydrate lots so we are good there as you never know when you are going to get snowed in or the roads washed out.